Finding the Fourth Proportional to 71,921.18, 99,210.59 and 45,016.98

Step by Step Solution

1. Step 1: Write the proportion equation
   71,921.18 : 99,210.59 = 45,016.98 : x
2. Step 2: Convert to fraction form
   71,921.18/99,210.59 = 45,016.98/x
3. Step 3: Cross multiply
   71,921.18x = 99,210.59 × 45,016.98
4. Step 4: Simplify right side
   71,921.18x = 4,466,161,275.57
5. Step 5: Solve for x
   x = 4,466,161,275.57/71,921.18
6. Step 6: Final answer
   x = 62,098.00